Board roofing and siding



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v BOARD ROOFING AND SIDING. N0. 576,569. Patented Feb. 9, 1897.

mmsssss I llvvilvrbn larged detail sectional view showing the j unc- UNITED STATES PATENT OFFICE.

GEORGE ANDREYV GEMMER, OF VILLIAHSPORT, INDIANA.

BOARD ROOFING AND SIDING.

SPECIFICATION forming part of Letters Patent No. 576,569, dated February 9, 1897.

Application filed January 20, 1896.

T0 (LZZ "10700710 [it may concern.-

Be it known that I, GEORGE ANDREW GEM- MER, a citizen of the United States, residing at VVilliamsport, in the county of Warren and State of Indiana, have invented new and useful Improvements in Board Roofing and Siding, of which the following is a specification.

My invention relates to certain new'and useful improvements in boards for roofing; and it consists in a new form of joint hereinafter more fully set forth.

The object of my invention is to provide a board for the roofing and siding of buildings, that can be closely jointed together without the use of joint-battens, that will be practically impermeable to the weather without the application of any extraneous covering, and that will not be warped by changes in atmospheric conditions. I attain these objects by means of the form of boarding illustrated in the accompanying drawings, in which simi lar numerals of reference designate like parts throughout both views.

Figure 1 is a broken perspective view of my board roofing, and Fig. 2 is a broken enture of two successive boards.

Boards of the proper dimension, as to width, breadth, and form, are collected and dressed by suitable machinery to proper dimensions. The grooves 2, formed in the board 1, extend longitudinally with the grain of the boards, and are provided for the purpose of preventing said boards from warping when exposed to the weather or when their surfaces are exposed to the various degrees of temperature and moisture, as well as to divert the direction of the flow of the greater portion of the water from the gutters at the lap-joints hereinafter described. These grooves are spaced at distances apart the best suited to the quality and nature of the material and the best calculated to prevent its warping and twisting; V

The main feature of my invention rests in the form of the longitudinal joint of the board, which permits the interchangeability of the boards, which may be taken indiscriminately from a heap and connected or jointed together.

One edge of the board 1 is dressed on its under longitudinal edge to form the lip 3,

Serial No. 576,230. (No model.)

which is slightly tapered longitudinally and inwardly, while the top opposite edge 4 is dressed to be jointed with the lipped edge 5 of the next consecutive board. The top surface of this edge is grooved to form a water gutter-way 6, and extends close to the edge 5, thereby leaving a narrow bearing-strip 7, against which the inner tapered bearing-surface of the lip 3 bears, said groove being provided for the purpose of preventing the water or moisture from leaking through the edgejoint 5.

It will be observed in the construction of the joint described that, while the lip 5 may warp and turn or bend upwardly and outwardly from the bearing-strip 7 and the boards will shrink in width to tend to open said joint between the edges 4 and 5, the said strip 7, by reason of its narrowness will readily adjust itself to a bearing against the under side and tapered surface of the said lip 3, the lap of which is purposely made wide to extend its bearing range.

An important feature of my construction is that by reason of the relative fit of the upper and lower edges of the boards it is practically impossible for water to be retained between the cracks or joints by reason of capillarity. For it will be observed that below the vertical joint against the face 7 there is a vertical space and then a horizontal space between the upwardly and horizontally extending faces of the lip 3 and the opposing surfaces of the groove 6, which spaces are too wide to hold water by capillarity. These spaces intervening between the joint opposite 7 and the outside of the boards will serve effectually to prevent water reaching said joint, so that there is no danger of water being held in said joint by capillarity.

Having thus fully described the nature and construction of my invention, what I claim as new and useful, and desire to cover by Letters Patent of the'United States therefor, is-

The roofing or siding strip or board having the lipped lower edge 5 and the dovetailed. lip 3 depending therefrom, the upper edge 4: adapted to register with the edge 5 of the board above, the narrow vertical bearing edge 7 fitting against the upper portion of the inner face of the dovetailed lip 3, and the concave groove 6 extending from the edge 7 around the edge of the lip 8, to the outer face of the board and at such a distance therefrom as to leave a vertical space and a horizontal space opening outward and both of said spaces be ing of such width as that water will not be held therein by capillarity, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing I0 witnesses.

GEORGE ANDREXV GEMMER.

Witnesses:

ALBERT C. JENNISON, f EZRA O. Voms. 

